Arizona vs Illinois: Local Ordinance Comparison (2026)

ADU Rules

Arizona's HB 2720 (2024), codified at A.R.S. 9-461.18, requires municipalities over 75,000 population to permit accessory dwelling units on single-family lots, limiting restrictive zoning, owner-occupancy, and parking mandates. HB 2928 (2025) extends an ADU mandate to counties.

Tiny Homes

Under ARS 9-461.18, every Arizona municipality with more than 75,000 residents must permit at least one attached and one detached accessory dwelling unit on any lot zoned for a single-family home. Cities that failed to adopt compliant rules by January 1, 2025 must allow ADUs outright.

Beekeeping

Arizona requires every beekeeper to register apiaries with the State Department of Agriculture, regardless of city rules, and follows uniform statewide pest and disease management standards.

The Illinois Bees and Apiaries Act requires registration of all colonies with the Department of Agriculture and authorizes inspections to control diseases statewide.

Breed Restrictions

Illinois prohibits municipalities from declaring dogs dangerous or vicious solely based on breed under the Animal Control Act, requiring conduct-based determinations only.

Chickens & Livestock

Arizona generally leaves chicken and livestock keeping to municipal zoning, but state law protects agricultural operations on land zoned or used for farming under the Right to Farm Act.

Illinois flatly bars owners from letting livestock run at large. Under 510 ILCS 55/1 you must provide restraints to keep animals confined, and you are civilly liable for all damage they cause when they escape.

Exotic Pets

Arizona Game and Fish Commission rules apply uniformly statewide and prohibit private possession of restricted live wildlife including big cats, primates, alligators, and venomous reptiles without a special license.

Illinois prohibits private possession of dangerous animals including big cats, bears, wolves, and primates under the Dangerous Animals Act, with limited exempt categories.

Pet Limits

Illinois defines and criminalizes companion animal hoarding under the Humane Care for Animals Act, applying uniformly through state criminal code statewide.

Wildlife Feeding

Arizona makes it unlawful to intentionally feed or attract wildlife, except birds and tree squirrels, in Maricopa, Pima, and Pinal counties under A.R.S. 13-2927. The offense is a petty offense targeting coyotes, javelina, and similar animals.

Illinois Wildlife Code prohibits feeding deer and similar wildlife in many counties to prevent chronic wasting disease spread, with statewide enforcement authority.

Tobacco Retail License

Illinois requires retailers selling electronic cigarettes and e-liquids to obtain Department of Revenue licensing and follow age-verification, packaging, and tax rules statewide.

Dispensary Zoning

Arizona caps statewide marijuana establishment licenses and limits the local zoning conditions cities may impose under ARS Title 36 Chapter 28.2.

Illinois sets no statewide buffer for adult-use dispensaries; 410 ILCS 705/55-25 lets counties and municipalities zone them, cap their number, set distance limits from sensitive sites, or ban them outright, but never more strictly than the State allows.

Juvenile Curfew

Illinois imposes a statewide juvenile curfew barring minors under 17 from public places late at night under Section 12C-60 of the Criminal Code, which replaced the repealed Child Curfew Act in 2013.

Commercial Drones

Arizona commercial drone pilots operate under FAA Part 107 and ARS 13-3729 state rules, with cities barred from imposing separate licensing or operational regulations.

Recreational Drones

Illinois preempts local drone regulation through the Freedom from Drone Surveillance Act, establishing uniform privacy rules while federal FAA authority controls airspace operation statewide.

Coastal Development

The Illinois Department of Natural Resources Coastal Management Program regulates Lake Michigan shoreline development, applying uniform permit requirements along the entire Illinois coast regardless of municipality.

Flood Zones

Arizona statutorily delegates floodplain regulation to counties and flood control districts, setting uniform minimum standards for development in mapped floodplains statewide.

Illinois law requires state-issued permits for construction within regulatory floodways and mandates municipal participation in NFIP minimum standards across all designated flood hazard areas.

Stormwater Management

Arizona regulates stormwater discharges through the AZPDES program under ARS Title 49, requiring permits for construction, industrial, and municipal stormwater statewide.

Outdoor Burning

Arizona regulates open burning through ADEQ air quality rules and DFFM forestry statutes, requiring permits for most outdoor burns and prohibiting burns during no-burn declarations.

Illinois EPA regulations restrict open burning statewide, prohibiting the burning of garbage, landscape waste in many urban areas, and any materials producing dense smoke or air pollution.

Propane Storage

Illinois regulates the storage, handling, and transport of liquefied petroleum gas statewide under the LPG Act, adopting NFPA 58 standards uniformly through the Office of the State Fire Marshal.

Firearms in Vehicles

Illinois law sets uniform rules for transporting firearms in vehicles under the FOID Card Act and Firearm Concealed Carry Act, preempting local handgun transport ordinances.

Food Truck Permits

Arizona Department of Health Services regulates mobile food units statewide under A.R.S. Title 36, Chapter 8 and uniform food code rules in A.A.C. Title 9, applied through county health permits.

Illinois requires mobile food vendors to obtain certified food protection manager status and meet uniform sanitation standards under the Food Service Sanitation Code statewide.

Casino Zoning Districts

Illinois doesn't let cities zone in casinos on their own: the Illinois Gambling Act (230 ILCS 10/7) hands out a fixed number of state owners licenses, each tied by statute to one named municipality. Chicago got its own license under a 2019 law, capped at 4,000 gaming positions. Five more licenses went to Danville, Waukegan, Rockford, a Cook County township cluster, and unincorporated Williamson County.

Charitable Bingo and Raffles

Arizona lets a nonprofit with federal 501(c) tax-exempt status run a raffle without a gambling license under A.R.S. Section 13-3302(B), so long as it has operated in-state for a full year, keeps no insider pecuniary benefit, and lets only local members run the drawing. Bingo works differently: any organization that wants to deal cards must first get a Class A, B or C license from the Department of Revenue, taxed 1.5% to 2.5% of receipts under Sections 5-413 and 5-414.

Illinois nonprofits need a Department of Revenue license before running charitable games, capped at 4 days a year, with single bets at house-banked games limited to $20 and cash payouts capped at $500 per event. Licenses cost $400 for two years. A companion law, the Bingo License and Tax Act, licenses bingo separately for $200 a year and taxes proceeds at 5% quarterly.

Sports Betting Law

Arizona legalized event wagering, commonly called sports betting, in 2021 under Arizona Revised Statutes Title 5, Chapter 11. The Department of Gaming may issue no more than ten event wagering operator licenses to non-tribal applicants, Arizona pro sports teams, PGA Tour host venues, or NASCAR national-touring-race promoters, or their designees, and no more than ten to Indian tribes that have signed the current tribal-state gaming compact. Offering event wagering without one of these licenses is unlawful statewide.

Illinois legalized sports betting under the Sports Wagering Act, but only through an operator holding a Board-issued master sports wagering license. The Illinois Gaming Board licenses online operators, in-state sports facilities, and existing casino owners and organization licensees, each paying steep application and license fees. Bettors must be at least 21 and physically located in Illinois when they place a wager.

Drought Landscaping Rights

Arizona does not give homeowners a general right to xeriscape, gravel, or desert landscaping over an HOA's objection; that stays governed entirely by each community's own declaration. What A.R.S. § 33-1819 grants is narrower: once a planned community's declarant control period ends, an association that already allows natural grass cannot flatly ban artificial turf on a member's lot, though it may regulate the turf's location, coverage, and quality.

Illinois protects native plantings, not xeriscape and not artificial turf. The Homeowners' Native Landscaping Act, 765 ILCS 167, effective July 19, 2024, bars an association from prohibiting a resident or owner from planting or growing Illinois native species on that person's own lawn, and expressly forbids the association from imposing height restrictions on a planned, intentional and maintained native landscape. The right is conditional: the area must stay predominantly free of weeds, invasive species and trash, the vegetation must not extend onto neighboring properties, sidewalks, streets or common areas, and it must not interfere with traffic or utilities. Nothing in Illinois law bars an association from requiring live turf generally, protects gravel or artificial turf, or blocks a fine for a brown lawn during a watering restriction.

EV Charger Rights

Since January 1, 2024 the Illinois Electric Vehicle Charging Act has voided any covenant, deed restriction or governing-document provision that prohibits or unreasonably restricts installing an electric vehicle charging system in a unit owner's unit or designated parking space, including a deeded space, an exclusive use common area space and a space specifically designated for a particular owner. The Act reaches condominium associations and common interest community associations together, because 765 ILCS 1085/15 borrows the definition of association from both the Condominium Property Act and the Common Interest Community Association Act, and it applies to existing buildings as well as new ones. An association that requires approval must decide in writing, and an application not denied in writing within 60 days is deemed approved. The owner pays for installation, electricity, maintenance and removal, must use a licensed and insured electrical contractor, and must keep liability coverage naming the association as an additional insured.

HOA Fines & Enforcement

Arizona law caps how much a homeowners association can fine a member and forces the board to give notice and a hearing first. A.R.S. § 33-1803 limits late charges on an unpaid penalty to the greater of $15 or 10 percent, sets a 21-day certified-mail window to contest a violation notice, and requires the association to answer within 10 business days or lose its right to collect attorney fees during the dispute.

Illinois puts no dollar limit on association fines. Both statutes say only that the board may levy reasonable fines, and neither sets a maximum, a daily cap or a cure period. What Illinois does require is process: under 765 ILCS 160/1-30(g) a common interest community association board may levy and collect reasonable fines only after notice and an opportunity to be heard, and 765 ILCS 605/18.4(l) imposes the identical condition on a condominium board. The board may discuss a violation in closed session, but the vote to impose the fine has to be taken in the open portion of a meeting. Since January 1, 2019 most Illinois associations have also had to maintain a written complaint policy under 765 ILCS 615/35 and issue a final determination in writing within 180 days, which is the gateway to an Ombudsperson request under 765 ILCS 615/40.

Cottage Food Operations

Arizona lets you cook for sale in your own kitchen once you register with the Department of Health Services and hold a current food handler certificate from an accredited program. A.R.S. § 36-136(I)(4)(g) exempts cottage food products made in a private home for commercial purposes from the state food establishment rules, so there is no licence, no inspection and no annual sales cap. What Arizona does impose is a packaging and labeling regime under A.R.S. § 36-932, plus separate delivery rules for anything containing dairy, meat or poultry and for anything that needs temperature control.

Illinois runs its cottage food program out of 410 ILCS 625/4, and the current text sets no ceiling at all on what a cottage food operation may sell. Paragraph (1) of subsection (b) is printed as "(Blank)", and the only dollar figure anywhere in the Section is the $50 maximum annual registration fee a local health department may charge. You register with the local health department for the unit of local government where your kitchen sits, not with the State, and you may then sell anywhere in Illinois. Subsection (h), added by Public Act 102-633 effective January 1, 2022, bars a home rule unit from regulating cottage food operations in a manner inconsistent with the State scheme.

Home Kitchen Operations

Arizona has no home restaurant permit. There is no microenterprise home kitchen operation licence, no meal count allowance, and nothing in A.R.S. § 36-136(I)(4) that exempts a home kitchen serving cooked-to-order meals from the state food establishment rules. The only commercial route out of a private kitchen is cottage food registration under A.R.S. Title 36, Chapter 8, Article 2, and A.R.S. § 36-932(A) makes that a packaged-goods scheme: products "must be packaged at home with an attached label." Serving plates to guests at your address, or cooking meals to order for pickup, falls outside every exemption Arizona has written.

DUI Checkpoint Legality

Arizona has no DUI checkpoint statute at all. The words "checkpoint" and "roadblock" appear nowhere in the Arizona Revised Statutes, so nothing in state law authorizes sobriety checkpoints, bans them, or sets rules on notice, supervision or how long a stop may last. The only stop authority title 28 grants is A.R.S. § 28-1594, which permits a stop and detention only as reasonably necessary to investigate an actual or suspected violation of that title, so a suspicionless checkpoint stop rests on constitutional analysis rather than on any Arizona statute. Everything that happens after the stop is heavily codified, from the impaired-to-the-slightest-degree standard in § 28-1381(A)(1) to the twelve-month refusal suspension in § 28-1321(B).

Illinois holds roadside safety checks, but the General Assembly never wrote a statute authorising or regulating them. The Illinois Vehicle Code mentions checkpoints exactly once, in a funding clause at 625 ILCS 5/11-501.01(g), and the Criminal Code of 2012 does not mention them at all. What is written down is what happens once an officer singles you out: implied consent to a chemical test under 625 ILCS 5/11-501.1(a) attaches only on arrest evidenced by a Uniform Traffic Ticket, field sobriety testing for cannabis under 11-501.9(a) requires an independent cannabis-related factual basis, and refusing a chemical test costs a first offender 12 months of driving privileges.

Recording Police

Arizona's only statute aimed at filming police, A.R.S. § 13-3732, has never taken effect. It would have made it a class 3 misdemeanor to keep video recording law enforcement activity within eight feet of it after a verbal warning, but the U.S. District Court for the District of Arizona enjoined its enforcement on September 9, 2022, about two weeks before its effective date, and the Attorney General filed a notice of non-opposition. The section still prints in the Arizona Revised Statutes with no injunction note, so reading the code alone gives the wrong answer. What actually governs is Arizona's one-party consent wiretap exemption in A.R.S. § 13-3012(9) and the interference offenses, which require force, a threat of force, or physical involvement in an arrest.

Illinois writes the right to film police directly into its eavesdropping statute. 720 ILCS 5/14-2(e) says nothing in the eavesdropping article prohibits any individual who is not a law enforcement officer from recording an officer performing his or her duties in a public place, or anywhere the officer has no reasonable expectation of privacy. The same subsection lets the officer take reasonable action to maintain safety and control, secure crime scenes and accident sites, protect investigations, and protect public safety and order, so the right is to record, not to stand wherever you like. Illinois has no statute creating a minimum distance you must keep from a working officer.

Native Plants

The Arizona Native Plant Law protects designated cacti, trees, and other species from destruction or removal without state permits, applying universally on private and public land regardless of municipal rules.

Rainwater Harvesting

Illinois has never adopted a statewide plumbing standard for rainwater harvesting. The Department of Public Health proposed one in December 2018, but it never took effect, and the Illinois Plumbing Code still contains no harvested-water subpart.

Tree Removal & Heritage Trees

Arizona protects native trees such as ironwood, mesquite, and palo verde under the Native Plant Law, requiring state permits and notice before removal even on private residential property.

Water Restrictions

Arizona regulates groundwater use through Active Management Areas (AMAs) under the 1980 Groundwater Management Act, applying mandatory conservation requirements to municipal water providers in five designated regions, including Phoenix and Tucson.

Weed Ordinances

Illinois law designates noxious weeds and requires landowners to control them on all property regardless of municipal weed ordinances.

Golf Carts & Low-Speed Vehicles

Arizona runs two separate low-speed classes and gives neither one a local street-designation scheme. A neighborhood electric vehicle, the state's version of a federal low-speed vehicle, may not exceed 25 mph, may not be driven on a road posted above 35 mph except to cross at an intersection, and must carry a permanent notice of those restrictions in clear view of the driver under A.R.S. § 28-966. A golf cart is defined separately in A.R.S. § 28-101(37) and escapes registration only when it is used in the operation of a golf course or moved on a highway "only incidentally", so a cart used as everyday neighborhood transport has to be registered, equipped and driven by a licensed driver like any other motor vehicle. One narrow shoulder privilege exists, and it reaches only age restricted communities in unincorporated Maricopa County.

Illinois runs two different regimes and the answer depends entirely on which vehicle you own. A golf cart is a non-highway vehicle under 625 ILCS 5/11-1426.1, and driving one on any street, highway or roadway is unlawful unless a municipality, township, county or other unit of local government has first passed an ordinance or resolution authorising it on roads under its jurisdiction. Even then the cart may be driven only where the posted speed limit is 35 miles per hour or less. A low-speed vehicle, by contrast, is lawful by default on any Illinois street posted at 30 miles per hour or less under 625 ILCS 5/11-1426.2, and a local government has to act to prohibit it. Both require a valid driver license and mandatory insurance.

Aircraft Noise

Arizona law forces cities, towns, and counties holding land in a military airport's high noise or accident potential zone to adopt compatibility plans and enforce zoning that shields residents from aircraft noise, backed by civil penalties reaching $50,000.

Aircraft noise in Illinois is governed exclusively by federal aviation law, leaving cities and the state without authority to regulate flight operations or in-flight sound.

Decibel Limits

Illinois sets uniform statewide decibel limits for stationary industrial and commercial noise sources through Pollution Control Board rules under the Environmental Protection Act.

Dark Sky Rules

Arizona regulates outdoor lighting statewide through the Outdoor Light Control statutes, requiring shielded fixtures and limits on certain lamp types, particularly in counties hosting major astronomical observatories.

Abandoned Vehicles

Arizona Revised Statutes Title 28 establishes uniform statewide procedures for abandoned vehicle reporting, towing, notice to owners, and disposal through licensed agents.

The Illinois Vehicle Code establishes uniform procedures for declaring, towing, and disposing of abandoned vehicles on public and private property across all jurisdictions in the state.

EV Charging

Illinois law guarantees renters and condo owners the right to install EV charging stations, preempting local restrictions on residential charging access at multi-unit buildings.

Snow & Sidewalk Clearing

The Illinois Snow and Ice Removal Act shields residential property owners from liability for natural accumulations cleared in good faith, applying uniformly statewide.

Eviction Notice & Process

Under A.R.S. § 33-1368, Arizona landlords must give a 5-day written notice for nonpayment of rent and a 10-day notice to cure for other material lease violations before filing. Material and irreparable breaches allow immediate termination. Evictions proceed as special detainer actions under A.R.S. § 33-1377, with trial set 3–6 days out.

Illinois requires a 5-day written notice for nonpayment of rent (735 ILCS 5/9-209), a 10-day notice to quit for lease violations (735 ILCS 5/9-210), and a 30-day termination notice for ending a month-to-month tenancy without cause (735 ILCS 5/9-207). Only a court may order eviction.

Just Cause Eviction

The Arizona Residential Landlord-Tenant Act preempts the field of residential eviction grounds and procedures, preventing cities from imposing just-cause eviction requirements beyond the state-defined notice and breach standards.

Landlord Entry & Notice

Under A.R.S. § 33-1343, an Arizona landlord must give at least two days' notice of intent to enter and may enter only at reasonable times for legitimate purposes such as inspections, repairs, or showings. No notice is required in a genuine emergency, and access may not be abused to harass the tenant.

Lease Termination & Notice to Vacate

A.R.S. § 33-1375 requires 30 days' written notice to end a month-to-month tenancy (10 days week-to-week). Breaking a fixed-term lease early can incur damages, though landlords must mitigate. A.R.S. § 33-1318 lets domestic-violence and sexual-assault victims terminate early; military servicemembers terminate under the federal SCRA.

Under 735 ILCS 5/9-207, ending a month-to-month or other tenancy under one year requires 30 days' written notice; a week-to-week tenancy requires 7 days. The statute lets the landlord 'terminate the tenancy by 30 days' notice, in writing,' and then bring an eviction action. Fixed-term leases end on their stated date.

Rent Control

Arizona prohibits local rent control. State law makes rent regulation on private residential property a matter of statewide concern and preempts the field, so cities, charter cities, towns, and counties cannot cap or freeze rents on private housing. There is no statewide rent cap, leaving private rents to the market.

Illinois has no statewide rent control and no cap on rent increases. The Rent Control Preemption Act, 50 ILCS 825, bars every unit of local government, including home rule cities, from enacting, maintaining, or enforcing any ordinance that controls the rent charged for private residential or commercial property. No Illinois municipality has enforceable rent control.

Rent Increase Notice

Arizona has no statutory cap on how much a landlord may raise rent and no dedicated rent-increase notice statute. For a month-to-month tenancy, a rent change is implemented by serving the 30-day termination/change notice tied to the periodic rental date under A.R.S. § 33-1375. Fixed-term leases cannot be raised mid-term.

Illinois has no statewide statute setting a maximum rent increase or a dedicated advance-notice period for raising rent, and the Rent Control Preemption Act (50 ILCS 825) bars local rent control. On a month-to-month tenancy, a rent change takes effect only through the 30-day termination notice in 735 ILCS 5/9-207.

Repairs & Habitability

A.R.S. § 33-1324 requires Arizona landlords to keep rentals fit and habitable: meeting building codes, maintaining electrical, plumbing, heating and cooling systems, and supplying running water and heat. If a landlord fails to act, A.R.S. § 33-1361 lets tenants terminate after a 5-day or 10-day notice, and § 33-1363 allows repair-and-deduct.

Illinois recognizes an implied warranty of habitability in every residential lease through case law, not a single statute. The Illinois Supreme Court established it in Jack Spring, Inc. v. Little (1972), holding that all residential leases include the warranty, fulfilled by substantial compliance with applicable building codes. Chicago's RLTO adds detailed statutory standards.

Security Deposit Rules

Arizona caps security deposits at one and one-half month's rent. After the tenancy ends and the tenant requests it, a landlord has 14 days (excluding weekends and legal holidays) to return the deposit with an itemized list of deductions. Wrongful retention exposes the landlord to damages of twice the amount withheld.

Illinois sets no statewide cap on residential security deposits. Under the Security Deposit Return Act, 765 ILCS 710, a landlord of a building with 5 or more units who keeps any of a deposit for damage must furnish an itemized statement within 30 days of move-out, or return the deposit in full within 45 days, or owe double the deposit plus attorney's fees.

Squatter's Rights & Adverse Possession

Arizona's adverse possession periods are tiered: 2 years by right of possession alone (A.R.S. § 12-522), 3 years under color of title (§ 12-523), 5 years under a recorded deed with taxes paid (§§ 12-524, 12-525), and a 10-year catch-all (§ 12-526). Possession must be open, hostile, and continuous; removal is by court action.

Adverse possession in Illinois generally requires 20 years of possession (735 ILCS 5/13-101). The period drops to 7 years when the occupant holds under claim and color of title 'made in good faith' and pays all taxes assessed (735 ILCS 5/13-109), or holds connected record title with 7 years of actual residence (735 ILCS 5/13-107).

Agricultural Zoning Protection

Arizona limits local zoning power over agricultural land, protecting commercial farming activities from overly restrictive land-use regulation.

Illinois protects agricultural land through the Agricultural Areas Conservation and Protection Act and limits county zoning over farms outside municipal boundaries.

Insurance Requirements

A.R.S. 9-500.39 requires Arizona short-term rental operators to maintain at least $500,000 in liability insurance or rent through a marketplace providing equivalent coverage.

Noise Rules

A.R.S. 9-500.39 lets Arizona cities apply local noise ordinances to short-term rentals and impose escalating penalties for verified noise violations occurring on the premises.

Occupancy Limits

A.R.S. 9-500.39 lets Arizona cities cap nightly occupancy at two adults per bedroom plus additional persons, applying uniformly to short-term rentals statewide.

Taxes & Fees

Arizona requires short-term rental operators to license with the Department of Revenue and remit transaction privilege tax plus any applicable county and city transient lodging taxes statewide.

Illinois imposes a 6% state Hotel Operators' Occupation Tax on short-term rentals of fewer than 30 consecutive days, including platforms like Airbnb and Vrbo, applied uniformly statewide.

Plastic Bag Rules

Arizona prohibits cities, towns, and counties from regulating or banning auxiliary containers like plastic bags, cups, and bottles under ARS 9-500.38.

Polystyrene Foam Rules

Arizona preempts local bans and fees on polystyrene foam food containers as auxiliary containers under ARS 9-500.38 and ARS 11-269.16.

Panel Permits

Arizona requires expedited residential solar permitting under SolarAPP+ adoption laws and provides statewide property tax exemptions for residential solar energy devices under A.R.S. Section 42-11054.

Illinois protects residential solar energy installations through the Homeowners Energy Policy Statement Act and limits unreasonable association or municipal restrictions.

Fencing & Safety Requirements

Arizona enforces a uniform statewide swimming pool enclosure law requiring barriers around residential pools, with cities and counties bound to minimum standards but allowed to adopt stricter local rules.

Illinois requires public and semi-public pools to be enclosed by barriers at least 4 feet high under the state Swimming Facility Code, while residential pool fencing is enforced through locally adopted building codes.

Dash Cam & Windshield Mounting

Arizona is one of the few states whose code names dash cam recording and permits it in so many words. A.R.S. section 28-963(A)(3) forbids recording or broadcasting video on a device while driving, then carves out use of the device for the sole purpose of continuously recording or broadcasting video within or outside of the motor vehicle, which is exactly what a dash cam does. For the mount itself, A.R.S. section 28-959.01(A)(12) exempts safety monitoring equipment and driver feedback devices from the windshield obstruction ban when they sit immediately behind, slightly above or slightly below the rearview mirror. A screen that plays video to the driver is a separate question and is prohibited while the vehicle is in motion.

Illinois never lists permitted windshield zones for a dash cam the way Florida and Texas do. It applies a materiality test instead: 625 ILCS 5/12-503(c-5) prohibits driving with objects placed or suspended between the driver and the front windshield that materially obstruct the driver's view, and 12-503(c) does the same for the rear window and the side windows beside the driver. The same subsection (c-5) then bars any officer from stopping or searching the vehicle solely on the basis of that violation or a suspected one, which makes a windshield-mounted camera close to unenforceable as a standalone traffic stop. The real exposure in Illinois is not the mount but the microphone, because recording a private conversation without every party's consent is a Class 4 felony under 720 ILCS 5/14-4(a).

Radar Detector Rules

A radar detector is legal in a private vehicle anywhere in Arizona. The state's vehicle equipment article, A.R.S. sections 28-921 through 28-966, names no radar detector, laser jammer or speed measuring countermeasure of any kind, and section 28-921(B) states positively that the article does not prohibit the use of additional parts and accessories on a vehicle where the use is not inconsistent with the article. Two real limits survive. Where you stick it matters, because section 28-959.01(B) bars any object placed in or on the vehicle in a manner that obstructs or reduces the driver's clear view through the windshield. And a detector is prohibited outright in a commercial motor vehicle under 49 C.F.R. section 392.71, which Arizona enforces against commercial traffic through Title 28, chapter 14.

A radar detector is legal in an ordinary Illinois passenger car. The only detector ban in the Illinois Vehicle Code, 625 ILCS 5/12-714, reaches a driver who operates or is in actual physical control of a commercial motor vehicle as defined in 625 ILCS 5/6-500(6), which means roughly 26,001 pounds or more, 16 or more passengers including the driver, or any size vehicle hauling placarded hazardous materials. Radar and laser jammers are a separate matter and are banned in every motor vehicle by 625 ILCS 5/12-613. Both sections carry the same unusual protection: an officer may not stop or search a vehicle solely because a detector or jammer is suspected.

Window Tint Limits

Arizona lets the front side windows carry film with a light transmission of thirty-three percent plus or minus three percent, so a front window measuring down to 30 percent still complies, and it sets no darkness limit at all on the side windows behind the driver or on the rear window. Every tinted pane, front and rear, is capped at a luminous reflectance of thirty-five percent plus or minus three percent, which is what rules out mirrored and heavily metallic film. On the windshield the state allows a tint strip across the topmost portion provided the bottom edge of the material sits at least twenty-nine inches above the undepressed driver's seat and the strip is not red or amber. Arizona has no periodic passenger-vehicle safety inspection, so all of this is checked at the roadside rather than at a testing station.

Illinois bans tinted film on the front windshield except a nonreflective strip running no more than 6 inches down from the top, and bars any window treatment on the windows immediately adjacent to each side of the driver unless the car meets one of the exceptions in 625 ILCS 5/12-503(a-5). Those exceptions are conditional on the back of the car: front side windows may run at 50% light transmittance if no window behind the driver's seat is below 30%, or at 35% if no window behind the driver's seat is below 35%, each with a 5% variance the officer's meter must allow. The Vehicle Code sets no darkness floor at all for windows behind the driver's seat. Because Illinois runs no periodic safety inspection for ordinary passenger cars, tint is checked at the roadside with a meter rather than at an annual test.